DNS

DNS architecture diagrams covering recursive resolution flows, global server load balancing, and F5 Distributed Cloud DNS management.

DNS Resolution Flow

Standard DNS query resolution from client through recursive resolver to authoritative nameserver with GSLB integration.

flowchart LR
  client@{ icon: 'lucide:globe', label: 'Client' }
  resolver@{ icon: 'carbon:dns-services', label: 'Recursive Resolver' }
  root@{ icon: 'lucide:server', label: 'Root DNS' }
  tld@{ icon: 'lucide:server', label: 'TLD Server' }
  auth@{ icon: 'carbon:server-dns', label: 'Authoritative DNS' }
  gslb@{ icon: 'carbon:load-balancer-global', label: 'GSLB' }

  client --> resolver
  resolver --> root
  root --> resolver
  resolver --> tld
  tld --> resolver
  resolver --> auth
  auth --> gslb
  gslb --> resolver
  resolver --> client

F5 XC DNS Management

F5 Distributed Cloud DNS management providing intelligent DNS load balancing across multi-cloud origins.

flowchart TD
  user@{ icon: 'lucide:globe', label: 'End Users' }
  xcdns@{ icon: 'f5xc:dns-management', label: 'XC DNS Management' }
  health@{ icon: 'f5xc:observability', label: 'Health Monitoring' }
  aws@{ icon: 'hashicorp-flight:aws-color', label: 'AWS Origin' }
  azure@{ icon: 'hashicorp-flight:azure-color', label: 'Azure Origin' }
  gcp@{ icon: 'hashicorp-flight:gcp-color', label: 'GCP Origin' }

  user --> xcdns
  xcdns --> health
  health --> aws
  health --> azure
  health --> gcp
  xcdns --> aws
  xcdns --> azure
  xcdns --> gcp

DNS Load Balancing Architecture

Multi-tier DNS load balancing with geographic routing, health checks, and failover between cloud regions.

architecture-beta
  group dns(carbon:dns-services)[DNS Infrastructure]
  group region1(hashicorp-flight:aws-color)[US East]
  group region2(hashicorp-flight:azure-color)[EU West]

  service gslb(carbon:load-balancer-global)[GSLB] in dns
  service health(carbon:application)[Health Check] in dns
  service lb1(carbon:load-balancer-application)[Regional LB] in region1
  service app1(carbon:virtual-machine)[App Servers] in region1
  service lb2(carbon:load-balancer-application)[Regional LB] in region2
  service app2(carbon:virtual-machine)[App Servers] in region2

  gslb:R --> L:health
  gslb:B --> T:lb1
  lb1:R --> L:app1
  gslb:B --> T:lb2
  lb2:R --> L:app2